Related Clues:
- Serious article penned by Shackleton, maybe
- Very serious fellow in conversation
- Try, after husband leaves home, to be serious
- Purposefully, I approach breeding ground
- The Importance of Being __, play by Oscar Wilde
- Serious in intention
- Serious being in play by Wilde
- Advance payment showing sincerity
- Corrupt eastern firm
- Showing conviction
- Very serious and sincere
- Serious attention retreat needed
- In most corresponding, the first letter becomes central, being sincere
- Train seen moving purposefully
- Intensely serious article penned by Hemingway, perhaps